Hello

Just for interest this is the inside of a vintage Meridian 101b pre-amp, the whole thing is only 300x150mm:

[Linked Image]

Presumably a small Linear Power Supply complete with dainty toroidal transformer.

From the days before M started making extremely expensive kit with cheapo bought in power supplies.

1) MS200, G65, Revivers, DSP5000.2, DSP5000C.2, DSP3100, D1500, SME10/IV.

2) Mac Mini (Roon), Explorer 2, Sennheiser HD6XX.